Okay, so let's make Xavier x, and Yolanda y. We know that their combined ages are 70, so:
x + y = 70
Now, Xavier is twice as old as his sister Yolanda was when he was as old as she is now. To get how old Yolanda was when he was as old as she is now, we have how old she is now, minus the difference between their ages, which is y - (x - y). Xavier is twice as old as this, so:
x = 2(y - (x - y))
Take out the second set of brackets:
x = 2(y - x + y)
which is:
x = 2(2y - x)
Multiply out the brackets:
x = 4y - 2x
Now, we know that x + y = 70 from the first equation, so:
y = 70 - x
replace y in the equation above (x = 4y - 2x) with 70 - x and you get:
x = 4(70 - x) - 2x
Multiply out the brackets again:
x = 280 - 4x -2x
x = 280 - 6x
add 6x to both sides:
7x = 280
divide both sides by 7:
x = 40
So Xavier is forty. Their combined ages are 70, so Yolanda is thirty.
6.5 x 2 = 13 51.93 + 13 = 64.93
Rodger is 4 years old,Roger is 4, his sister is 2, last year Roger was 3 and his sister was 1.
Mary is dead
Father = 38 Son = 19
There can be no proper answer as the father will not live to be 150 years old.
twice
12
Jupiter.
I lost my car keys twice last week. My sister has seen the movie twice. London is twice as big as Sydney.
The boy's sister would then be 34. do the math.
Yes, at least twice in MLB ... On May 25, 2010 the Cubs played the Dodgers at Wrigley Field. Xavier Nady started in right field for the Cubs and Xavier Paul started in right field for the Dodgers. On May 20, 2012 the Orioles played the Nationals at Nationals Park. Xavier Nady started in right field for the Nationals and Xavier Avery started in left field for the Orioles.
Jupiter
Sister = 5 David = 13
6.5 x 2 = 13 51.93 + 13 = 64.93
Zoron will be seventeen and his sister will be seven
Rodger is 4 years old,Roger is 4, his sister is 2, last year Roger was 3 and his sister was 1.
second cousin twice removed?